src/mpdclient.c

   1 /* ncmpc (Ncurses MPD Client)
   2  * (c) 2004-2009 The Music Player Daemon Project
   3  * Project homepage: http://musicpd.org
   4
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #include "mpdclient.h"
  21 #include "screen_utils.h"
  22 #include "config.h"
  23 #include "options.h"
  24 #include "strfsong.h"
  25 #include "utils.h"
  26
  27 #include <stdlib.h>
  28 #include <unistd.h>
  29 #include <time.h>
  30 #include <string.h>
  31
  32 #undef  ENABLE_FANCY_PLAYLIST_MANAGMENT_CMD_ADD /* broken with song id's */
  33 #define ENABLE_FANCY_PLAYLIST_MANAGMENT_CMD_DELETE
  34 #define ENABLE_FANCY_PLAYLIST_MANAGMENT_CMD_MOVE
  35 #define ENABLE_SONG_ID
  36 #define ENABLE_PLCHANGES
  37
  38 #define BUFSIZE 1024
  39
  40 #define MPD_ERROR(c) (c==NULL || c->connection==NULL || c->connection->error)
  41
  42 /* filelist sorting functions */
  43 static gint
  44 compare_filelistentry(gconstpointer filelist_entry1,
  45                           gconstpointer filelist_entry2)
  46 {
  47         const mpd_InfoEntity *e1, *e2;
  48         int n = 0;
  49
  50         e1 = ((const filelist_entry_t *)filelist_entry1)->entity;
  51         e2 = ((const filelist_entry_t *)filelist_entry2)->entity;
  52
  53         if (e1 && e2 && e1->type == e2->type) {
  54                 switch (e1->type) {
  55                 case MPD_INFO_ENTITY_TYPE_DIRECTORY:
  56                         n = g_utf8_collate(e1->info.directory->path,
  57                                         e2->info.directory->path);
  58                         break;
  59                 case MPD_INFO_ENTITY_TYPE_SONG:
  60                         break;
  61                 case MPD_INFO_ENTITY_TYPE_PLAYLISTFILE:
  62                         n = g_utf8_collate(e1->info.playlistFile->path,
  63                                         e2->info.playlistFile->path);
  64                 }
  65         }
  66         return n;
  67 }
  68
  69 /* sort by list-format */
  70 gint
  71 compare_filelistentry_format(gconstpointer filelist_entry1,
  72                              gconstpointer filelist_entry2)
  73 {
  74         const mpd_InfoEntity *e1, *e2;
  75         char key1[BUFSIZE], key2[BUFSIZE];
  76         int n = 0;
  77
  78         e1 = ((const filelist_entry_t *)filelist_entry1)->entity;
  79         e2 = ((const filelist_entry_t *)filelist_entry2)->entity;
  80
  81         if (e1 && e2 &&
  82             e1->type == MPD_INFO_ENTITY_TYPE_SONG &&
  83             e2->type == MPD_INFO_ENTITY_TYPE_SONG) {
  84                 strfsong(key1, BUFSIZE, options.list_format, e1->info.song);
  85                 strfsong(key2, BUFSIZE, options.list_format, e2->info.song);
  86                 n = strcmp(key1,key2);
  87         }
  88
  89         return n;
  90 }
  91
  92
  93 /* Error callbacks */
  94 static gint
  95 error_cb(mpdclient_t *c, gint error, const gchar *msg)
  96 {
  97         GList *list = c->error_callbacks;
  98
  99         if (list == NULL)
 100                 fprintf(stderr, "error [%d]: %s\n", (error & 0xFF), msg);
 101
 102         while (list) {
 103                 mpdc_error_cb_t cb = list->data;
 104                 if (cb)
 105                         cb(c, error, msg);
 106                 list = list->next;
 107         }
 108
 109         mpd_clearError(c->connection);
 110         return error;
 111 }
 112
 113
 114 /****************************************************************************/
 115 /*** mpdclient functions ****************************************************/
 116 /****************************************************************************/
 117
 118 gint
 119 mpdclient_finish_command(mpdclient_t *c)
 120 {
 121         mpd_finishCommand(c->connection);
 122
 123         if (c->connection->error) {
 124                 gint error = c->connection->error;
 125
 126                 if (error == MPD_ERROR_ACK &&
 127                     c->connection->errorCode == MPD_ACK_ERROR_PERMISSION &&
 128                     screen_auth(c) == 0)
 129                         return 0;
 130
 131                 if (error == MPD_ERROR_ACK)
 132                         error = error | (c->connection->errorCode << 8);
 133
 134                 error_cb(c, error, c->connection->errorStr);
 135                 return error;
 136         }
 137
 138         return 0;
 139 }
 140
 141 mpdclient_t *
 142 mpdclient_new(void)
 143 {
 144         mpdclient_t *c;
 145
 146         c = g_malloc0(sizeof(mpdclient_t));
 147         playlist_init(&c->playlist);
 148
 149         return c;
 150 }
 151
 152 void
 153 mpdclient_free(mpdclient_t *c)
 154 {
 155         mpdclient_disconnect(c);
 156
 157         mpdclient_playlist_free(&c->playlist);
 158
 159         g_list_free(c->error_callbacks);
 160         g_list_free(c->playlist_callbacks);
 161         g_list_free(c->browse_callbacks);
 162         g_free(c);
 163 }
 164
 165 gint
 166 mpdclient_disconnect(mpdclient_t *c)
 167 {
 168         if (c->connection)
 169                 mpd_closeConnection(c->connection);
 170         c->connection = NULL;
 171
 172         if (c->status)
 173                 mpd_freeStatus(c->status);
 174         c->status = NULL;
 175
 176         playlist_clear(&c->playlist);
 177
 178         if (c->song)
 179                 c->song = NULL;
 180
 181         return 0;
 182 }
 183
 184 gint
 185 mpdclient_connect(mpdclient_t *c,
 186                   gchar *host,
 187                   gint port,
 188                   gfloat _timeout,
 189                   gchar *password)
 190 {
 191         gint retval = 0;
 192
 193         /* close any open connection */
 194         if( c->connection )
 195                 mpdclient_disconnect(c);
 196
 197         /* connect to MPD */
 198         c->connection = mpd_newConnection(host, port, _timeout);
 199         if( c->connection->error )
 200                 return error_cb(c, c->connection->error,
 201                                 c->connection->errorStr);
 202
 203         /* send password */
 204         if( password ) {
 205                 mpd_sendPasswordCommand(c->connection, password);
 206                 retval = mpdclient_finish_command(c);
 207         }
 208         c->need_update = TRUE;
 209
 210         return retval;
 211 }
 212
 213 gint
 214 mpdclient_update(mpdclient_t *c)
 215 {
 216         gint retval = 0;
 217
 218         if (MPD_ERROR(c))
 219                 return -1;
 220
 221         /* free the old status */
 222         if (c->status)
 223                 mpd_freeStatus(c->status);
 224
 225         /* retrieve new status */
 226         mpd_sendStatusCommand(c->connection);
 227         c->status = mpd_getStatus(c->connection);
 228         if ((retval=mpdclient_finish_command(c)))
 229                 return retval;
 230
 231         /* check if the playlist needs an update */
 232         if (c->playlist.id != c->status->playlist) {
 233                 if (playlist_is_empty(&c->playlist))
 234                         retval = mpdclient_playlist_update_changes(c);
 235                 else
 236                         retval = mpdclient_playlist_update(c);
 237         }
 238
 239         /* update the current song */
 240         if (!c->song || c->status->songid != c->song->id) {
 241                 c->song = playlist_get_song(c, c->status->song);
 242         }
 243
 244         c->need_update = FALSE;
 245
 246         return retval;
 247 }
 248
 249
 250 /****************************************************************************/
 251 /*** MPD Commands  **********************************************************/
 252 /****************************************************************************/
 253
 254 gint
 255 mpdclient_cmd_play(mpdclient_t *c, gint idx)
 256 {
 257 #ifdef ENABLE_SONG_ID
 258         struct mpd_song *song = playlist_get_song(c, idx);
 259
 260         if (song)
 261                 mpd_sendPlayIdCommand(c->connection, song->id);
 262         else
 263                 mpd_sendPlayIdCommand(c->connection, MPD_PLAY_AT_BEGINNING);
 264 #else
 265         mpd_sendPlayCommand(c->connection, idx);
 266 #endif
 267         c->need_update = TRUE;
 268         return mpdclient_finish_command(c);
 269 }
 270
 271 gint
 272 mpdclient_cmd_pause(mpdclient_t *c, gint value)
 273 {
 274         mpd_sendPauseCommand(c->connection, value);
 275         return mpdclient_finish_command(c);
 276 }
 277
 278 gint
 279 mpdclient_cmd_crop(mpdclient_t *c)
 280 {
 281         mpd_Status *status;
 282         int length;
 283
 284         mpd_sendStatusCommand(c->connection);
 285         status = mpd_getStatus(c->connection);
 286         length = status->playlistLength - 1;
 287
 288         if (length <= 0) {
 289                 mpd_freeStatus(status);
 290         } else if (status->state == 3 || status->state == 2) {
 291                 /* If playing or paused */
 292
 293                 mpd_sendCommandListBegin( c->connection );
 294
 295                 while (length >= 0) {
 296                         if (length != status->song)
 297                                 mpd_sendDeleteCommand(c->connection, length);
 298
 299                         length--;
 300                 }
 301
 302                 mpd_sendCommandListEnd(c->connection);
 303                 mpd_freeStatus(status);
 304         } else {
 305                 mpd_freeStatus(status);
 306         }
 307
 308         return mpdclient_finish_command(c);
 309 }
 310
 311 gint
 312 mpdclient_cmd_stop(mpdclient_t *c)
 313 {
 314         mpd_sendStopCommand(c->connection);
 315         return mpdclient_finish_command(c);
 316 }
 317
 318 gint
 319 mpdclient_cmd_next(mpdclient_t *c)
 320 {
 321         mpd_sendNextCommand(c->connection);
 322         c->need_update = TRUE;
 323         return mpdclient_finish_command(c);
 324 }
 325
 326 gint
 327 mpdclient_cmd_prev(mpdclient_t *c)
 328 {
 329         mpd_sendPrevCommand(c->connection);
 330         c->need_update = TRUE;
 331         return mpdclient_finish_command(c);
 332 }
 333
 334 gint
 335 mpdclient_cmd_seek(mpdclient_t *c, gint id, gint pos)
 336 {
 337         mpd_sendSeekIdCommand(c->connection, id, pos);
 338         return mpdclient_finish_command(c);
 339 }
 340
 341 gint
 342 mpdclient_cmd_shuffle(mpdclient_t *c)
 343 {
 344         mpd_sendShuffleCommand(c->connection);
 345         c->need_update = TRUE;
 346         return mpdclient_finish_command(c);
 347 }
 348
 349 gint
 350 mpdclient_cmd_shuffle_range(mpdclient_t *c, guint start, guint end)
 351 {
 352         mpd_sendShuffleRangeCommand(c->connection, start, end);
 353         c->need_update = TRUE;
 354         return mpdclient_finish_command(c);
 355 }
 356
 357 gint
 358 mpdclient_cmd_clear(mpdclient_t *c)
 359 {
 360         gint retval = 0;
 361
 362         mpd_sendClearCommand(c->connection);
 363         retval = mpdclient_finish_command(c);
 364         /* call playlist updated callback */
 365         mpdclient_playlist_callback(c, PLAYLIST_EVENT_CLEAR, NULL);
 366         c->need_update = TRUE;
 367         return retval;
 368 }
 369
 370 gint
 371 mpdclient_cmd_repeat(mpdclient_t *c, gint value)
 372 {
 373         mpd_sendRepeatCommand(c->connection, value);
 374         return mpdclient_finish_command(c);
 375 }
 376
 377 gint
 378 mpdclient_cmd_random(mpdclient_t *c, gint value)
 379 {
 380         mpd_sendRandomCommand(c->connection, value);
 381         return mpdclient_finish_command(c);
 382 }
 383
 384 gint
 385 mpdclient_cmd_single(mpdclient_t *c, gint value)
 386 {
 387         mpd_sendSingleCommand(c->connection, value);
 388         return mpdclient_finish_command(c);
 389 }
 390
 391 gint
 392 mpdclient_cmd_consume(mpdclient_t *c, gint value)
 393 {
 394         mpd_sendConsumeCommand(c->connection, value);
 395         return mpdclient_finish_command(c);
 396 }
 397
 398 gint
 399 mpdclient_cmd_crossfade(mpdclient_t *c, gint value)
 400 {
 401         mpd_sendCrossfadeCommand(c->connection, value);
 402         return mpdclient_finish_command(c);
 403 }
 404
 405 gint
 406 mpdclient_cmd_db_update(mpdclient_t *c, gchar *path)
 407 {
 408         mpd_sendUpdateCommand(c->connection, path ? path : "");
 409         return mpdclient_finish_command(c);
 410 }
 411
 412 gint
 413 mpdclient_cmd_volume(mpdclient_t *c, gint value)
 414 {
 415         mpd_sendSetvolCommand(c->connection, value);
 416         return mpdclient_finish_command(c);
 417 }
 418
 419 gint
 420 mpdclient_cmd_add_path(mpdclient_t *c, gchar *path_utf8)
 421 {
 422         mpd_sendAddCommand(c->connection, path_utf8);
 423         return mpdclient_finish_command(c);
 424 }
 425
 426 gint
 427 mpdclient_cmd_add(mpdclient_t *c, struct mpd_song *song)
 428 {
 429         gint retval = 0;
 430
 431         if( !song || !song->file )
 432                 return -1;
 433
 434         /* send the add command to mpd */
 435         mpd_sendAddCommand(c->connection, song->file);
 436         if( (retval=mpdclient_finish_command(c)) )
 437                 return retval;
 438
 439 #ifdef ENABLE_FANCY_PLAYLIST_MANAGMENT_CMD_ADD
 440         /* add the song to playlist */
 441         playlist_append(&c->playlist, song);
 442
 443         /* increment the playlist id, so we don't retrieve a new playlist */
 444         c->playlist.id++;
 445
 446         /* call playlist updated callback */
 447         mpdclient_playlist_callback(c, PLAYLIST_EVENT_ADD, (gpointer) song);
 448 #else
 449         c->need_update = TRUE;
 450 #endif
 451
 452         return 0;
 453 }
 454
 455 gint
 456 mpdclient_cmd_delete(mpdclient_t *c, gint idx)
 457 {
 458         gint retval = 0;
 459         struct mpd_song *song;
 460
 461         if (idx < 0 || (guint)idx >= playlist_length(&c->playlist))
 462                 return -1;
 463
 464         song = playlist_get(&c->playlist, idx);
 465
 466         /* send the delete command to mpd */
 467 #ifdef ENABLE_SONG_ID
 468         mpd_sendDeleteIdCommand(c->connection, song->id);
 469 #else
 470         mpd_sendDeleteCommand(c->connection, idx);
 471 #endif
 472         if( (retval=mpdclient_finish_command(c)) )
 473                 return retval;
 474
 475 #ifdef ENABLE_FANCY_PLAYLIST_MANAGMENT_CMD_DELETE
 476         /* increment the playlist id, so we don't retrieve a new playlist */
 477         c->playlist.id++;
 478
 479         /* remove the song from the playlist */
 480         playlist_remove_reuse(&c->playlist, idx);
 481
 482         /* call playlist updated callback */
 483         mpdclient_playlist_callback(c, PLAYLIST_EVENT_DELETE, (gpointer) song);
 484
 485         /* remove references to the song */
 486         if (c->song == song) {
 487                 c->song = NULL;
 488                 c->need_update = TRUE;
 489         }
 490
 491         mpd_freeSong(song);
 492
 493 #else
 494         c->need_update = TRUE;
 495 #endif
 496
 497         return 0;
 498 }
 499
 500 gint
 501 mpdclient_cmd_move(mpdclient_t *c, gint old_index, gint new_index)
 502 {
 503         gint n;
 504         struct mpd_song *song1, *song2;
 505
 506         if (old_index == new_index || new_index < 0 ||
 507             (guint)new_index >= c->playlist.list->len)
 508                 return -1;
 509
 510         song1 = playlist_get(&c->playlist, old_index);
 511         song2 = playlist_get(&c->playlist, new_index);
 512
 513         /* send the move command to mpd */
 514 #ifdef ENABLE_SONG_ID
 515         mpd_sendSwapIdCommand(c->connection, song1->id, song2->id);
 516 #else
 517         mpd_sendMoveCommand(c->connection, old_index, new_index);
 518 #endif
 519         if( (n=mpdclient_finish_command(c)) )
 520                 return n;
 521
 522 #ifdef ENABLE_FANCY_PLAYLIST_MANAGMENT_CMD_MOVE
 523         /* update the playlist */
 524         playlist_swap(&c->playlist, old_index, new_index);
 525
 526         /* increment the playlist id, so we don't retrieve a new playlist */
 527         c->playlist.id++;
 528
 529 #else
 530         c->need_update = TRUE;
 531 #endif
 532
 533         /* call playlist updated callback */
 534         mpdclient_playlist_callback(c, PLAYLIST_EVENT_MOVE, (gpointer) &new_index);
 535
 536         return 0;
 537 }
 538
 539 gint
 540 mpdclient_cmd_save_playlist(mpdclient_t *c, gchar *filename_utf8)
 541 {
 542         gint retval = 0;
 543
 544         mpd_sendSaveCommand(c->connection, filename_utf8);
 545         if ((retval = mpdclient_finish_command(c)) == 0)
 546                 mpdclient_browse_callback(c, BROWSE_PLAYLIST_SAVED, NULL);
 547         return retval;
 548 }
 549
 550 gint
 551 mpdclient_cmd_load_playlist(mpdclient_t *c, gchar *filename_utf8)
 552 {
 553         mpd_sendLoadCommand(c->connection, filename_utf8);
 554         c->need_update = TRUE;
 555         return mpdclient_finish_command(c);
 556 }
 557
 558 gint
 559 mpdclient_cmd_delete_playlist(mpdclient_t *c, gchar *filename_utf8)
 560 {
 561         gint retval = 0;
 562
 563         mpd_sendRmCommand(c->connection, filename_utf8);
 564         if ((retval = mpdclient_finish_command(c)) == 0)
 565                 mpdclient_browse_callback(c, BROWSE_PLAYLIST_DELETED, NULL);
 566         return retval;
 567 }
 568
 569
 570 /****************************************************************************/
 571 /*** Callback management functions ******************************************/
 572 /****************************************************************************/
 573
 574 static void
 575 do_list_callbacks(mpdclient_t *c, GList *list, gint event, gpointer data)
 576 {
 577         while (list) {
 578                 mpdc_list_cb_t fn = list->data;
 579
 580                 fn(c, event, data);
 581                 list = list->next;
 582         }
 583 }
 584
 585 void
 586 mpdclient_playlist_callback(mpdclient_t *c, int event, gpointer data)
 587 {
 588         do_list_callbacks(c, c->playlist_callbacks, event, data);
 589 }
 590
 591 void
 592 mpdclient_install_playlist_callback(mpdclient_t *c,mpdc_list_cb_t cb)
 593 {
 594         c->playlist_callbacks = g_list_append(c->playlist_callbacks, cb);
 595 }
 596
 597 void
 598 mpdclient_remove_playlist_callback(mpdclient_t *c, mpdc_list_cb_t cb)
 599 {
 600         c->playlist_callbacks = g_list_remove(c->playlist_callbacks, cb);
 601 }
 602
 603 void
 604 mpdclient_browse_callback(mpdclient_t *c, int event, gpointer data)
 605 {
 606         do_list_callbacks(c, c->browse_callbacks, event, data);
 607 }
 608
 609
 610 void
 611 mpdclient_install_browse_callback(mpdclient_t *c,mpdc_list_cb_t cb)
 612 {
 613         c->browse_callbacks = g_list_append(c->browse_callbacks, cb);
 614 }
 615
 616 void
 617 mpdclient_remove_browse_callback(mpdclient_t *c, mpdc_list_cb_t cb)
 618 {
 619         c->browse_callbacks = g_list_remove(c->browse_callbacks, cb);
 620 }
 621
 622 void
 623 mpdclient_install_error_callback(mpdclient_t *c, mpdc_error_cb_t cb)
 624 {
 625         c->error_callbacks = g_list_append(c->error_callbacks, cb);
 626 }
 627
 628 void
 629 mpdclient_remove_error_callback(mpdclient_t *c, mpdc_error_cb_t cb)
 630 {
 631         c->error_callbacks = g_list_remove(c->error_callbacks, cb);
 632 }
 633
 634
 635 /****************************************************************************/
 636 /*** Playlist management functions ******************************************/
 637 /****************************************************************************/
 638
 639 /* update playlist */
 640 gint
 641 mpdclient_playlist_update(mpdclient_t *c)
 642 {
 643         mpd_InfoEntity *entity;
 644
 645         if (MPD_ERROR(c))
 646                 return -1;
 647
 648         playlist_clear(&c->playlist);
 649
 650         mpd_sendPlaylistInfoCommand(c->connection,-1);
 651         while ((entity = mpd_getNextInfoEntity(c->connection))) {
 652                 if (entity->type == MPD_INFO_ENTITY_TYPE_SONG)
 653                         playlist_append(&c->playlist, entity->info.song);
 654
 655                 mpd_freeInfoEntity(entity);
 656         }
 657
 658         c->playlist.id = c->status->playlist;
 659         c->song = NULL;
 660
 661         /* call playlist updated callbacks */
 662         mpdclient_playlist_callback(c, PLAYLIST_EVENT_UPDATED, NULL);
 663
 664         return mpdclient_finish_command(c);
 665 }
 666
 667 #ifdef ENABLE_PLCHANGES
 668
 669 /* update playlist (plchanges) */
 670 gint
 671 mpdclient_playlist_update_changes(mpdclient_t *c)
 672 {
 673         mpd_InfoEntity *entity;
 674
 675         if (MPD_ERROR(c))
 676                 return -1;
 677
 678         mpd_sendPlChangesCommand(c->connection, c->playlist.id);
 679
 680         while ((entity = mpd_getNextInfoEntity(c->connection)) != NULL) {
 681                 struct mpd_song *song = entity->info.song;
 682
 683                 if (song->pos >= 0 && (guint)song->pos < c->playlist.list->len) {
 684                         /* update song */
 685                         playlist_replace(&c->playlist, song->pos, song);
 686                 } else {
 687                         /* add a new song */
 688                         playlist_append(&c->playlist, song);
 689                 }
 690
 691                 mpd_freeInfoEntity(entity);
 692         }
 693
 694         /* remove trailing songs */
 695         while ((guint)c->status->playlistLength < c->playlist.list->len) {
 696                 guint pos = c->playlist.list->len - 1;
 697
 698                 /* Remove the last playlist entry */
 699                 playlist_remove(&c->playlist, pos);
 700         }
 701
 702         c->song = NULL;
 703         c->playlist.id = c->status->playlist;
 704
 705         mpdclient_playlist_callback(c, PLAYLIST_EVENT_UPDATED, NULL);
 706
 707         return 0;
 708 }
 709
 710 #else
 711 gint
 712 mpdclient_playlist_update_changes(mpdclient_t *c)
 713 {
 714         return mpdclient_playlist_update(c);
 715 }
 716 #endif
 717
 718
 719 /****************************************************************************/
 720 /*** Filelist functions *****************************************************/
 721 /****************************************************************************/
 722
 723 mpdclient_filelist_t *
 724 mpdclient_filelist_get(mpdclient_t *c, const gchar *path)
 725 {
 726         mpdclient_filelist_t *filelist;
 727         mpd_InfoEntity *entity;
 728
 729         mpd_sendLsInfoCommand(c->connection, path);
 730         filelist = filelist_new(path);
 731         if (path && path[0] && strcmp(path, "/"))
 732                 /* add a dummy entry for ./.. */
 733                 filelist_append(filelist, NULL);
 734
 735         while ((entity=mpd_getNextInfoEntity(c->connection))) {
 736                 filelist_append(filelist, entity);
 737         }
 738
 739         /* If there's an error, ignore it.  We'll return an empty filelist. */
 740         mpdclient_finish_command(c);
 741
 742         filelist_sort_dir_play(filelist, compare_filelistentry);
 743
 744         return filelist;
 745 }
 746
 747 mpdclient_filelist_t *
 748 mpdclient_filelist_search(mpdclient_t *c,
 749                           int exact_match,
 750                           int table,
 751                           gchar *filter_utf8)
 752 {
 753         mpdclient_filelist_t *filelist;
 754         mpd_InfoEntity *entity;
 755
 756         if (exact_match)
 757                 mpd_sendFindCommand(c->connection, table, filter_utf8);
 758         else
 759                 mpd_sendSearchCommand(c->connection, table, filter_utf8);
 760         filelist = filelist_new(NULL);
 761
 762         while ((entity=mpd_getNextInfoEntity(c->connection)))
 763                 filelist_append(filelist, entity);
 764
 765         if (mpdclient_finish_command(c)) {
 766                 filelist_free(filelist);
 767                 return NULL;
 768         }
 769
 770         return filelist;
 771 }
 772
 773 mpdclient_filelist_t *
 774 mpdclient_filelist_update(mpdclient_t *c, mpdclient_filelist_t *filelist)
 775 {
 776         if (filelist != NULL) {
 777                 gchar *path = g_strdup(filelist->path);
 778
 779                 filelist_free(filelist);
 780                 filelist = mpdclient_filelist_get(c, path);
 781                 g_free(path);
 782                 return filelist;
 783         }
 784         return NULL;
 785 }
 786
 787 int
 788 mpdclient_filelist_add_all(mpdclient_t *c, mpdclient_filelist_t *fl)
 789 {
 790         guint i;
 791
 792         if (filelist_is_empty(fl))
 793                 return 0;
 794
 795         mpd_sendCommandListBegin(c->connection);
 796
 797         for (i = 0; i < filelist_length(fl); ++i) {
 798                 filelist_entry_t *entry = filelist_get(fl, i);
 799                 mpd_InfoEntity *entity  = entry->entity;
 800
 801                 if (entity && entity->type == MPD_INFO_ENTITY_TYPE_SONG) {
 802                         struct mpd_song *song = entity->info.song;
 803
 804                         mpd_sendAddCommand(c->connection, song->file);
 805                 }
 806         }
 807
 808         mpd_sendCommandListEnd(c->connection);
 809         return mpdclient_finish_command(c);
 810 }
 811
 812 GList *
 813 mpdclient_get_artists(mpdclient_t *c)
 814 {
 815         gchar *str = NULL;
 816         GList *list = NULL;
 817
 818         mpd_sendListCommand(c->connection, MPD_TABLE_ARTIST, NULL);
 819         while ((str = mpd_getNextArtist(c->connection)))
 820                 list = g_list_append(list, (gpointer) str);
 821
 822         if (mpdclient_finish_command(c))
 823                 return string_list_free(list);
 824
 825         return list;
 826 }
 827
 828 GList *
 829 mpdclient_get_albums(mpdclient_t *c, gchar *artist_utf8)
 830 {
 831         gchar *str = NULL;
 832         GList *list = NULL;
 833
 834         mpd_sendListCommand(c->connection, MPD_TABLE_ALBUM, artist_utf8);
 835         while ((str = mpd_getNextAlbum(c->connection)))
 836                 list = g_list_append(list, (gpointer) str);
 837
 838         if (mpdclient_finish_command(c))
 839                 return string_list_free(list);
 840
 841         return list;
 842 }